Ultrafast Laser Control of Antiferromagnetic–Ferrimagnetic Switching in Two-Dimensional Ferromagnetic Semiconductor Heterostructures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10465724" target="_blank" >RIV/00216208:11310/23:10465724 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=I3783f9Ji1" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=I3783f9Ji1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.nanolett.3c01350" target="_blank" >10.1021/acs.nanolett.3c01350</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultrafast Laser Control of Antiferromagnetic–Ferrimagnetic Switching in Two-Dimensional Ferromagnetic Semiconductor Heterostructures

Popis výsledku v původním jazyce

Realizingultrafast control of magnetization switching is of crucialimportance for information processing and recording technology. Here,we explore the laser-induced spin electron excitation and relaxationdynamics processes of CrCl3/CrBr3 heterostructureswith antiparallel (AP) and parallel (P) systems. Although an ultrafastdemagnetization of CrCl3 and CrBr3 layers occursin both AP and P systems, the overall magnetic order of the heterostructureremains unchanged due to the laser-induced equivalent interlayer spinelectron excitation. More crucially, the interlayer magnetic orderswitches from antiferromagnetic (AFM) to ferrimagnetic (FiM) in theAP system once the laser pulse disappears. The microscopic mechanismunderpinning this magnetization switching is dominated by the asymmetricalinterlayer charge transfer combined with a spin-flip, which breaksthe interlayer AFM symmetry and ultimately results in an inequivalentshift in the moment between two FM layers. Our study opens up a newidea for ultrafast laser control of magnetization switching in two-dimensionalopto-spintronic devices.

Název v anglickém jazyce

Ultrafast Laser Control of Antiferromagnetic–Ferrimagnetic Switching in Two-Dimensional Ferromagnetic Semiconductor Heterostructures

Popis výsledku anglicky

Realizingultrafast control of magnetization switching is of crucialimportance for information processing and recording technology. Here,we explore the laser-induced spin electron excitation and relaxationdynamics processes of CrCl3/CrBr3 heterostructureswith antiparallel (AP) and parallel (P) systems. Although an ultrafastdemagnetization of CrCl3 and CrBr3 layers occursin both AP and P systems, the overall magnetic order of the heterostructureremains unchanged due to the laser-induced equivalent interlayer spinelectron excitation. More crucially, the interlayer magnetic orderswitches from antiferromagnetic (AFM) to ferrimagnetic (FiM) in theAP system once the laser pulse disappears. The microscopic mechanismunderpinning this magnetization switching is dominated by the asymmetricalinterlayer charge transfer combined with a spin-flip, which breaksthe interlayer AFM symmetry and ultimately results in an inequivalentshift in the moment between two FM layers. Our study opens up a newidea for ultrafast laser control of magnetization switching in two-dimensionalopto-spintronic devices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nano Letters

ISSN

1530-6984

e-ISSN

1530-6992

Svazek periodika

23

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

5688-5695

Kód UT WoS článku

001006241100001

EID výsledku v databázi Scopus

2-s2.0-85164209854